[330] [Acarina are also found living upon trees, feeding upon other Arthropods and also upon spores of lichen and fungi (Oribatidæ or beetle mites); they also swarm indoors amongst stores and provisions (Tyroglyphidæ and Glyciphagi, household, sugar and cheese mites). This order is very important, as many are parasites upon man, his domestic animals and his cultivated plants, and attack his provisions and stores. Some live on blood, and in some of the ticks distribute various protozoal and other blood parasites and germs.—F. V. T.]

[331] [Some have seven segments to the legs.—F. V. T.]

[332] [This minute parasite is especially obnoxious in barley fields. In walking over barley stubble one is sure to be attacked by this Acarus in many districts. Trombidium is often very prevalent in gardens, especially along rows of peas, and in spring they may be found on fruit trees and bushes. Nut-pickers are frequently attacked by Leptus, and also pickers in other fruit plantations. It is often called the harvest mite.—F. V. T.]

[333] Lemaire, “Import. en France du tlalsahuate,” Compt. rend. Acad. Sci., Paris, 1867, lxv, p. 215.

[334] [This species is also known as Bicho colorado. It spins a web under the lower surface of the leaves, and it is only from December to February that it attacks warm-blooded animals and man.—F. V. T.]

[335] [There is something wrong here, probably in the identification. T. telarius is purely a plant-feeder, and it is extremely unlikely a variety would attack man. Anyhow, it will not do so in Great Britain.—F. V. T.]

[336] This has been proved in Uganda—so-called tick fever in man.

[337] Some ticks require only one (R. decoloratus), others two (R. evertsi), and some three hosts (R. appendiculatus) in order to reach maturity.

[338] Ixodes reduvius and I. ricinus are synonymous. [The above should read Ixodes ricinus, Latreille, 1806.—F. V. T.]

[339] Neumann, G. L., “Rev. de la fam. des Ixodides,” III Mém. Soc. Zool. France, 1899, xii, p. 129.